Solution manual of Heat Exchangers | Selection , Rating and Thermal Design by Ka

1. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad @solutionmanual1

2. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad Heat Exchangers: Selection, Rating, and Thermal Design, Fourth Edition Solution Manual Sadik Kakaç TOBB University of Economics and Technology Ankara, Turkey Hongtan Liu University of Miami Florida, U.S.A. Anchasa Pramuanjaroenkij Kasetsart University, Thailand @solutionmanual1

3. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad Problem 1.1 What are the principal types of shell-and-tube construction? SOLUTION: There are wide differences between shell-and-tube heat exchangers depending on the application. The most representative tube bundle types used in shell-and-tube heat exchangers are shown in Figures 1.10–1.12; a shell-and-tube heat exchanger with fixed tube sheets, a U- tube shell-and-tube heat exchanger and a pull-through floating head shell-and-tube heat exchanger. A number of shell- and tube-side flow arrangements are used in shell-and-tube heat exchangers depending on heat duty, pressure drop, pressure level, fouling, manufacturing techniques, cost, corrosion control, and cleaning problems. Shell-and-tube heat exchangers are designed on a custom basis for any capacity and operating conditions. This is contrary to many other types of heat exchangers. @solutionmanual1

4. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad Problem 1.2 What are the advantages and disadvantages of the principal types of shell-and-tube construction? SOLUTION: In Figure 1.10, a shell-and-tube heat exchanger with fixed tube sheets, the shell is welded to the tube sheets, and there is no access to the outside of the tube bundle for cleaning. This low-cost option has only limited thermal expansion, which can be somewhat increased by expansion bellows. Cleaning of the tube is easy. In Figure 1.11, the U-tube is the least expensive construction because only one tube sheet is needed. The tube side cannot be cleaned by mechanical means because of the sharp U-bend. Only even number of tube passes can be accommodated, but thermal expansion is unlimited In Figure 1.12, the classic type of pull-through floating head permits tube bundle removal with minimum disassembly, as required for heavily fouling units. The cost is high. @solutionmanual1

5. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad Problem 1.3 What are the different kinds of tubes used in heat exchangers? SOLUTION: Tubular heat exchangers can be further classified as follows: 1. Double-pipe heat exchangers, 2. Shell-and-tube heat exchangers, and 3. Spiral-tube heat exchangers. @solutionmanual1

6. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad Problem 1.4 Why are baffles used in shell-and-tube heat exchangers? SOLUTION: The baffles are used in shell-and-tube heat exchangers to promote a better heat transfer coefficient on the shell side and to support the tubes. @solutionmanual1

7. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad Problem 1.5 Where are fins (extended surfaces) used? SOLUTION: Extended surface heat exchangers are devices with fins or appendages on the primary heat transfer surface (tubular or plate) with the object of increasing heat transfer area. As it is well known that the heat transfer coefficient on the gas side is much lower than those on the liquid side, finned heat transfer surfaces are used on the gas side to increase the heat transfer area. Fins are widely used in gas-to-gas and gas-to-liquid heat exchangers whenever the heat transfer coefficient on one or both sides is low and there is a need for a compact heat exchanger. The two most common types of extended surface heat exchangers are plate-fin and tube-fin heat exchangers. @solutionmanual1

8. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad Problem 1.6 What are the types of fins that are used in heat exchangers? SOLUTION: In the plate-fin heat exchangers, the corrugated sheets that are sandwiched between the plates serve both to give extra heat transfer area and to provide structural support to the flat plates. There are many different forms of corrugated sheets used in these exchangers, but the most common types are as follows: 1. Plain fin 2. Plain-perforated fin 3. Serrated fin (also called “lanced,” “interrupted,” “louver,” or “multientry”) 4. Herringbone or wavy fin. In the tubular-fin heat exchangers, the fins on the outside of the tubes may be normal on individual tubes and may also be transverse, helical, or longitudinal (or axial), as shown in Figure 1.20. Longitudinal fins are commonly used in double-pipe or shell-and-tube heat exchangers with no baffles. The fluids may be gases or viscous liquids (oil coolers). Alternately, continuous plate-fin sheets may be fixed on the array of tubes. Examples are shown in Figure 1.19. As can be seen from the figure, in tube-fin exchangers, tubes of round, rectangular, or elliptical shapes are generally used. @solutionmanual1

9. https://gioumeh.com/product/heat-exchangers-selection-solution/https://gioumeh.com/product/heat-exchangers-selection-solution/ cl i ck h ere t o d ow nl oad Problem 1.7 What is fin efficiency? What does it depend upon? SOLUTION: The fin efficiency: ( ) tanh mH f  = fin mH f where 2 h k = m  f δ is the fin thickness L is the fin length.  The expressions of magnitude of for a variety of fin configurations are available in the literature; fin Kern, D. Q. and Kraus, A. D., Extended Surface Heat Transfer, McGraw-Hill, New York, 1972. The fin efficiency depends on the actual heat transfer rate from the fin and the maximum heat transfer rate from the fin if the entire fin were at base temperature. @solutionmanual1